CVE-2026-67329
@better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription
Description
@better-auth/stripe versions >= 1.4.11 and < 1.6.21, and >= 1.7.0-beta.0 and < 1.7.0-beta.10, contain an authorization bypass in organization subscription actions. The middleware validates the organization ID taken from the request query string against the authorizeReference callback, but the handler reads the organization ID only from the request body and falls back to the caller's active organization from their session. When these differ, an authenticated member of multiple organizations can perform subscription actions (cancel, change plan, restore, billing portal access) against an organization they belong to but should not manage, and can access another organization's billing details including payment methods, invoices, and subscription state.
INFO
Published Date :
Aug. 1, 2026, 1:17 p.m.
Last Modified :
Oct. 23, 2026, 11:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update @better-auth/stripe to version 1.6.21 or later.
- Update @better-auth/stripe to version 1.7.0-beta.10 or later.
- Ensure organization IDs are validated correctly.
- Review access control mechanisms for subscription actions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-67329.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-67329 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-67329
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-67329 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-67329 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: stripe de better-auth, Description: Las versiones de @better-auth/stripe >= 1.4.11 y anterior a 1.6.21, y >= 1.7.0-beta.0 y anterior a 1.7.0-beta.10, contienen un bypass de autorización en las acciones de suscripción de la organización. El middleware valida el ID de la organización tomado de la cadena de consulta de la solicitud contra el callback authorizeReference, pero el gestor lee el ID de la organización solo del cuerpo de la solicitud y recurre a la organización activa del llamante de su sesión. Cuando estos difieren, un miembro autenticado de múltiples organizaciones puede realizar acciones de suscripción (cancelar, cambiar plan, restaurar, acceso al portal de facturación) contra una organización a la que pertenecen pero que no deberían gestionar, y puede acceder a los detalles de facturación de otra organización incluyendo métodos de pago, facturas y estado de la suscripción. -
CVE Modified by [email protected]
Oct. 08, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/67xxx/CVE-2026-67329.json">CVE-2026-67329</a> Added Reference https://github.com/better-auth/better-auth/security/advisories/GHSA-h3rm-78g3-j7cp Added Reference https://www.vulncheck.com/advisories/better-auth-stripe-before-authorization-bypass-via-organization-subscription Removed Reference https://github.com/better-auth/better-auth/security/advisories/GHSA-h3rm-78g3-j7cp Removed Reference https://www.vulncheck.com/advisories/better-auth-stripe-before-authorization-bypass-via-organization-subscription -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 03, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-67329', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-03T18:20:04.118634Z'} -
New CVE Received by [email protected]
Aug. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'better-auth', 'product': 'stripe', 'versions': [{'status': 'affected', 'version': '1.4.11', 'lessThan': '1.6.21', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.6.21', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/better-auth/stripe', 'defaultStatus': 'unaffected'}, {'vendor': 'better-auth', 'product': 'stripe', 'versions': [{'status': 'affected', 'version': '1.7.0-beta.0', 'lessThan': '1.7.0-beta.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.7.0-beta.10', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/better-auth/stripe', 'defaultStatus': 'unaffected'}] Added Description @better-auth/stripe versions >= 1.4.11 and < 1.6.21, and >= 1.7.0-beta.0 and < 1.7.0-beta.10, contain an authorization bypass in organization subscription actions. The middleware validates the organization ID taken from the request query string against the authorizeReference callback, but the handler reads the organization ID only from the request body and falls back to the caller's active organization from their session. When these differ, an authenticated member of multiple organizations can perform subscription actions (cancel, change plan, restore, billing portal access) against an organization they belong to but should not manage, and can access another organization's billing details including payment methods, invoices, and subscription state. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N Added CWE CWE-639 Added Reference https://github.com/better-auth/better-auth/security/advisories/GHSA-h3rm-78g3-j7cp Added Reference https://www.vulncheck.com/advisories/better-auth-stripe-before-authorization-bypass-via-organization-subscription